Statistical and spectrophotometric identification of binaries in star clusters

Details Statistical and spectrophotometric identification of binaries in star clusters Statistical and spectrophotometric identification of binaries in star clusters

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976phdt........11b&link_type=abstract

Ph.D. Thesis Oklahoma Univ., Norman.

Computer Science

Binary Stars, Spectrophotometry, Star Clusters, Statistical Analysis, Mass Distribution, Open Clusters, Pleiades Cluster, Praesepe Star Clusters, Solar Spectra, Star Distribution

Scientific paper

The incidence of duplicity and distribution of secondary masses in open clusters were investigated using statistical techniques on UBVRI photometry. Important results were: (1) identification of stars likely to be binaries in the Hyades, Praesepe, and the Pleiades, (2) the scatter about the main sequences of single stars for these clusters was compatible with that of a one dimensional sequence within the limits of observational error, (3) the total scatter about the single-star main sequences for the Hyades and the Pleiades was analyzed and found to be incompatible with the secondary mass distribution function Abt and Levy found for field stars, and (4) unresolved binaries in open clusters can produce an error in distance of about 5 percent.

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